Improvement in washing and transporting sand



atta seta tutti (tido,

'idx in its bottom or sides, or both, at short intervals7 Y DAVID D. MALLCRY, OF MYS'IIC BRIDGE, CONNECTICUT.

Letters Patent No. 109,030, dated November 8, 1870.

IMPROVEMENT IN WASHING AND TRANSPORTING SAND.

The Schedule referred to in these Letters Patent and making part of the same.

l'o all whom it may concern:

` Be it known that I, DAVID .D.MALL0nY, of Mysper cent. of pure silex. The remainder, or a largeportion of the remainder, .is clay and analogous earthy matter, which should be removed.

The deposit'of sand is'found atan elevation of some' one hundred and fifty feet above tide-water, to which it is closely adjacent.

' I believe that my invention may be applied to the transporting and washing of finely-divided ores and many other materials.

I remove the material and simultaneously wash it by causing it to descend in a violently agitated curf rent of rapidly-movingwater, l

I will proceed to describe what I consider the best means ot' carryingont the invention. v

Ilhe accompanying drawing forms a part of this specification.

Figure 1 is a general side view, or, rather, a vertical section on a small scale;

Figure 2 is a section ofa small portion on a large scale;

Figure 3 is a cross-section of the trough on a still larger scale; and

Figure 4 is a corresponding `plan view of a portion.

Similar letters of reference indicate corresponding parts in all the figures.`

I construct a trough, 0i' plank or analogous material, which may be of uniform width throughont,ami

strips of wood extending about onethird of the dis'- tance across;

In the drawing the bottom oi' my trough is indicated by A, andthe sides by A1 and A2, while these short bars or semi-ritiles are marked a.

I shall, when necessary, designate the en tirc trough A5 Hand A?, by the single letter A.

This trough extends, either in a direct or more or less irregular line,` from a point-on the hill at or some-A thing above the sand to a pool or tank indicated by l.

The upper edge of this tank B is smooth and level, and the current of water, with the mingled matter, is received at or near its center, or so as to provide as extended a surface as possible over which the water may flow quietly, bearing away the clayey matter which has been loosened and freed from the sand in the descent.

The water may be supplied' from natural sources,

`'if any can be found snicientlynear at a proper altitude; but in other cases it can be forced up by a rotary or other pump driven by suitable power.V

it is important that the water be not the same muddy water which tlows from the `tank B, as it would not in such case take up or `absorb the loam and analogous matter with the sametiicility.

The water is thrown int-o the trough A in liberal quantities, and allowed to descend freely, except as it, and especially its lower strata, is constantly agitated and thrown alternately from side to side by passing with great rapidity over onacross the partial riiiies a. After the tank B is nearly tilled with sand the stream may be stopped and the remaining water may be drained ot' through suitable small orifices, not represented, at the side or bottom, and the sand removed. 1t has heretofore been common to transport sand,

with its accompanying foreign matter, by cars, orl

otherwise, down the hill, and then to cleanse it by laborious processes ot' washing, Sac.

lhere is no novelty in washing sand by violent agitation in water and allowing it to settle in a still pool while the water Hows a f'ay quietly and carries the soluble or semi soluble matter found therewith; neither is it new to remove the material of hills by washing it down by streams, natural or artificial; but I am not aware that any one before has used or pro-V posed'a lmeans for simultaneously washing and transporting. sand bycurrents of water, with provisions for conducting it efiiciently and uniformly like mine, or 'even transporting sand and analogous material through troughs by currents of water.

What I claim as my invention is;

The within-described method or process ot transporting and washing sand and analogous material by means of a current of water conducted through the spout A, passing over the bars'ft, or equivalent partial riitles, and separating the water and foreign matter from the sand in the tank B,or its equivalent, at its base, all substantially' as herein set forth.

In testimony whereof, I have hereuntoset my name in presence of two subscribing witnesses.

DAVID D. MALLORY.

Witnesses:

GaAs. Nimes, J r., WM. S. Frsn. 

